Function Vocab
Evaluating Function Rules
Is it a Function?
Is it a Function? Tables/Diagrams
Word Problem Translation
Use f(x)
Use f(x)
100
True or False - An function can have no outputs.
What is FALSE?
100
Evaluate f(x)=-3x if x=2
What is -6?
100
Is it a function? {(2, 3), (4, 5), ( -2, 6)}
What is YES the input does not repeat?
100
Is it a function?
X Y
1 1
2 2
3 3
4 4
What is YES, each input has an output/ All inputs are different?
100
An auto repair shop charges $50 plus $10 per hour.
What is f(x) 10x + 50?
200
The line going left to right.
What is horizontal?
200
Evaluate f(x)=2x+1 if x=-2
What is -3?
200
Is it a function? {(2, 0), (4, 0), ( -2, 0), ( 5, 0), ( 2, 0)}
What is NO, the input repeats?
200
Is it a function?
What is NO because it does not pass the Vertical Line Test?
200
The temperature is 25 F and is expected to fall 3 F every hour during the night.
What is f(x) = -3x + 25?
300
The line going up and down.
What is vertical?
300
Evaluate f(x)=-3 - x if x=6
What is -9?
300
Is it a function? {( 2), ( 4), ( -2), ( 7), ( 9)}
What NO, there are no outputs.
300
Is it a function?
X Y
0 0
2 0
4 0
6 0
What is YES, all inputs are different/each input has an output?
300
You are renting a car for $100 plus $10 dollar per hour.
What is f(x) = 10x + 100?
400
A relation that assigns exactly one input and one output?
What is a function?
400
Evaluate f(x)=25 + 4x if x=5
What is 45?
400
Is it a function? Y = 3x + 1
What is YES, the graph pass the vertical line test?
400
Which one is not a function?
A. {(2, 0), (4, 0), ( -2, 0), ( 5, 0), ( 1, 0)}
B. {(0, 0), (1, 0), (2, 0), (3, 0), (4, 0)}
C. {(-1, 5), (-2, 5), (-3, 5), (-4, 5), (-5, 5)}
D. {(-6, 1), (6, 1), (-5, 1), (-5, 1), (-6 0)}
What is D?
400
You are renting an AIRBNB for $500 a night plus $50 service fee every night.
What is f(x) = 50x+500?
500
The test to tell if a graph is a function
What is the Vertical Line Test?
500
Evaluate f(x)=-(4x+2) if x=7
What is -30
500
Is it a function? Y = X2 + 2.
What is YES, it pass the vertical line test?
500
Using the vertical line test does the graph of the points (1,3) and (1,5) represent a function?
What is False, the points fail the vertical line test
500
The population of Pine Bluff is 7000 and is decreasing at the rate of 9 per year.
Write an equation.
What is f(x) = 7000 - 9x?